Stripes appearing on rendered objects?
I'm assuming you sent the real texture.

Your texture is a png in a particular case: it is an index image.

The index image has a short Color Table, only 256 colors.

You have a pink gradient using a too limited number of colors.

I'm sending an image showing the problem when I changed the Color Table. Note the stripes are only affecting the pink colors.

To solve it, use the original file in RGB mode.

You cannot use the index file to conver to RGB, because you cannot bring back the colors you lost when you converted it to Index Mode.




Extra info:

This particular case was caused by converting from Illustrator to PNG.
Illustrator does not render gradients properly when exported.
It's a good practice using a raster-based program to make gradients.